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Finding the Fourth Proportional to 269,072.40, 403,608.60 and 82,059.60

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Solution

The fourth proportional to 269,072.40, 403,608.60 and 82,059.60 is: 123,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,072.40 : 403,608.60 = 82,059.60 : x
  2. Step 2: Convert to fraction form
    269,072.40/403,608.60 = 82,059.60/x
  3. Step 3: Cross multiply
    269,072.40x = 403,608.60 × 82,059.60
  4. Step 4: Simplify right side
    269,072.40x = 33,119,960,272.56
  5. Step 5: Solve for x
    x = 33,119,960,272.56/269,072.40
  6. Step 6: Final answer
    x = 123,089.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.